Shoe machine



Jan. 16, 1934. P. PSCRAKES ET AL SHOE MACHINE Filed Aug. 21, 1930 INVENTOM M BY A TTORNEY Patented Jan. 16, 1934 PATENT?v QFFICE SHOE MACHINE Paul Psorakes and George Hallien, Uniontown, Pa.

Application August 21, 1930. Serial No. 476,836

2 Claims.

7 Our invention is an improvement in shoe machinery, particularly useful in cutting sole leather for re-soling shoes and other footwear. Ordinarily, in re-soling, the worn layer is removed or an additional layer of sole leather is laid over it, in either case making an abrupt shouldered connection with the permanent outer sole extension under the instep in front of the heel.

By our invention we provide means for making a shouldered cut across the rear end of the new sole, providing an abutting shoulder, and an inner comparatively thin tongue extension adapted to fit between the outer and inner sole, with abutting contact against its squared end portion, providing for a continuously flush outer surface connection.

In the drawing illustrating the invention:

Fig. 1 shows the application of a re-sole to a shoe and its connection therewith;

Fig. 2 is a plan view illustrating the passage of the sole being cut through a machine provided with our improvement;

Fig. 3 is a cross sectional view on the line IIIIII of Fig. 2, showing the cutting operation;

Fig. 4 is a transverse sectional View on the line IV--IV of Fig. 2;

Fig. 5 is a perspective detail view showing our improved cutting blade and the end of the sole approaching it in the direction of operation.

Illustrating the desired result to be procured by our improvement, Fig. 1 shows in side elevation a shoe 2 of usual conventional construction having an inner sole 3 and an applied re-sole 4, which is secured to the inner sole by stitching or nailing.

The usual outer sole 5 is cut away providing the abutting shoulder 6, against which the corresponding abutting cut away shoulder '7 of the re-sole 4 engages, with its inwardly extending comparatively thin tongue 8 inserted between the inner sole 3 and the outer sole 5, beneath the instep.

By such shouldered engagement 67 the outer surfaces of soles 4 and 5 are thus flush with each other, providing a continuously smooth under face, as in a new shoe.

In making such shouldered cut the piece of sole leather 4 is passed through the feed rollers 9 and 10 of a standard leather cutting machine, the lower roller being preferably toothed as shown, to effect positive feeding against the front sharp edge 11 of knife 12. Such knife is mounted on the supporting base 13 of a standard machine in any suitable manner, as by the securing screws 18 and resisting screw 19 shown,

and a laterally adjustable guide 14 is suitably set to limit the extent of the shearing horizontal cut made by knife edge 11, as the sole is fed through the machine in the direction indicated.

The particular improvement involved is the 0 integral knife edge extension 15 having its edge 16 on the transverse plane of edge 11 but extending downwardly at right angles thereto, so as to effect the angular cut, providing for severance of the waste strip 17 and the right angled shoulder '7 of sole 4.

By such construction we are enabled to quickly and cleanly effect the transverse cut across the inner end portion of the sole 4, providing the uniform thickness tongue 8 and the right angled shoulder as described, ready for interfitting attachment to the standard sole construction of the usual shoe.

We are aware that leather cutting machines have been devised providing for a tapering cut, for insertion between inner and outer soles, requiring removal of leather from the cut-off outer sole for insertion of such tapered extension, which application however does not provide for a permanently smooth finished surface connection.

By our improvement we are enabled to provide for close intimate connection of the new sole by its extended tongue 8 and for ample insertion under the new sole, with the ample abutting shouldered and flush connection as described.

It will be understood that the improvement may be utilized in connection with sole leather or other material for the making of similar incisions, wherever such material is to be prepared in a similar manner for any particular use.

It will also be understood that the invention may be variously modified or changed by the skilled mechanic to adapt it to various existing conditions, or otherwise changed in detail construction, but that all such changes are to be understood as within the scope of the following claims. 7

What we claim is:

1. In a machine for making a rectangular L shaped severing out across the under portion of the straight end of a sole leather blank, the combination ofa fixedly mounted supporting base, a fiat faced knife on the base having a lower surface tapering upwardly to a main transverse cut- 105 ting edge in the plane of its upper face and a relatively short and thin downwardly extending side cutting knife extension at right angles thereto having an inner outwardly tapering surface terminating in a cutting edge forming a rectan- 110 gular extension of said main cutting edge on the transverse plane thereof, securing and resisting screws on the base engaging opposite edges and the rear edge of the knife, an upper and a lower feed roll each having a gripping periphery adapted to engage opposite faces of a blank immediately beyond the rectangular cutting edges of the knife'adapted to engage the blank and to move it towards and against said edges to eifect severance of a rectangular waste strip andits disposal below the knife as the previously connected portion of the blank is passed over above the knife.

2. In a machine for making a rectangular L shaped severing cut across the under portion of the straight end of a sole leather blank, the combination of a fixedly mounted supporting base, a fiat faced knife on the base having a lower surface tapering upwardly to a main transverse cutting edge in the plane of its upper face anda relatively short and thin downwardly extending side cutting knife extension at right angles thereto having an inner outwardly tapering surface terminating in a cutting edge forming a rectangular extension of said main cutting edge on the transverse plane thereof, securing and resisting screws on the base engaging opposite edges and the rear edge of the knife, an upper and a lower feed roll each having a gripping periphery adapted to engage opposite faces of a blank immediately beyond the rectangular cutting edges of the knife adapted to engage the blank and to move it towards and against said edges to eifect severance of a rectangular waste strip and its disposal below the knife as the previously connected portion of the blank is passed over above the knife, anda laterally adjustable guide adapted to engage the straight end of the blank spaced beyond the cutting edges of the knife having a contacting face in parallelism with the outer face of the side cutting knife extension.

PAUL PSORAKES. GEORGE HALLIEN. 

